ARMv8: LS1043A: Enable LS1043A default PSCI support

A most basic PSCI implementation with only one psci_version is added for
LS1043A, this can verify the generic PSCI framework, and more platform specific
implementation will be added later.

Signed-off-by: Hongbo Zhang <hongbo.zhang@nxp.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: York Sun <york.sun@nxp.com>

arch/arm/cpu/armv8/fsl-layerscape/Makefile

@@ -28,6 +28,7 @@ endif
 
 ifneq ($(CONFIG_LS1043A),)
 obj-$(CONFIG_SYS_HAS_SERDES) += ls1043a_serdes.o
+obj-$(CONFIG_ARMV8_PSCI) += ls1043a_psci.o
 endif
 
 ifneq ($(CONFIG_ARCH_LS1012A),)

arch/arm/cpu/armv8/fsl-layerscape/ls1043a_psci.S

@@ -0,0 +1,20 @@
+/*
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ * Author: Hongbo Zhang <hongbo.zhang@nxp.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ * This file implements LS102X platform PSCI SYSTEM-SUSPEND function
+ */
+
+#include <config.h>
+#include <linux/linkage.h>
+#include <asm/psci.h>
+
+	.pushsection ._secure.text, "ax"
+
+.globl	psci_version
+psci_version:
+	ldr	w0, =0x00010000		/* PSCI v1.0 */
+	ret
+
+	.popsection

board/freescale/ls1043ardb/Kconfig

@@ -13,4 +13,13 @@ config SYS_SOC
 config SYS_CONFIG_NAME
 	default "ls1043ardb"
 
+config SYS_HAS_ARMV8_SECURE_BASE
+	bool "Enable secure address for PSCI image"
+	depends on ARMV8_PSCI
+	default n
+	help
+	  PSCI image can be re-located to secure RAM.
+	  If enabled, please also define the value for ARMV8_SECURE_BASE,
+	  for LS1043ARDB, it could be some address in OCRAM.
+
 endif